LK8 Series Clamp Type（Curved Jaw）

PRODUCT

· Coupling assembled by pressing a polyurethane sleeve into hubs on both sides

· Can absorb vibration, parallel, angular misalignments and shaft end-play
· Resistance to oil and electrical insulation

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Dimensions(mm)

Model	Φd1 Φd Min. Bore	Φd1 Φd Max. Bore	ΦD	ΦD1	L	L1	L2	S	L3	L4	M	Tightening Torque ( N.m )
LK8-C14	3	7	14	19	21	7.05	5.3	0.8	3.5	5	M2.5	1.0-1.1
LK8-C20	5	10	20	22.5	30	10.5	7	1.0	5.25	7	M2.5	1.0-1.1
LK8-C25	6	12	25	30	34	11.2	9.6	1.0	5.6	9	M4	3.4-4.1
LK8-C30	8	16	30	34	35	11.5	9.6	1.0	5.6	9	M4	3.4-4.1
LK8-C40S	11	24	40	46	55	20	12	1.5	6.5	16.5	M5	7.0-8.5
LK8-C55	15	28	55	56.5	78	30.85	13.3	1.5	11	19	m6	14-15
LK8-C65	20	38	65	72	90	35.75	15.5	1.5	12.2	24.75	M8	30-35
LK8-C80	30	45	80	82	114	45.75	19.5	1.5	12	24.75	M8	30-35
LK8-C95	38	55	95	100	126	50.25	22.5	1.5	17.5	34	M10	65-68
LK8-C105	38	60	105	108	140	57	23	1.5	20	39.5	M10	65-68
LK8-C120	40	65	120	123	160	66.15	24.7	1.5	22.5	45	M12	100-110
LK8-C135	45	70	135	136	185	77.2	27.6	1.5	22.5	52.5	M12	100-110

Specifications(mm)

Model	Rated Torque (N.m)	Max. Rotational Frequency (rpm)	Moment of Inertia ( Kg.m²)	Static Torsional Stiffness (N.m / rad)	Errors of Eccentricity (mm)	Errors of Angularity ( ° )	Errors of Shaft End-play (mm)	N.W. (g)
LK8-C14-B	0.7	27000	2.0×10^-7	8.6	0.15	1	+0.60	7
LK8-C20-B	1.8	19000	1.06×10^-6	17	0.19	1	+0.80	19
LK8-C25-B	3.0	15200	3.15×10^-6	51	0.2	1	+0.90	32
LK8-C30-B	4.0	12700	6.15×10^-6	62	0.2	1	+1.00	46
LK8-C40S-B	6.0	9550	3.01×10^-5	380	0.2	1	+1.20	113
LK8-C40-B	6.0	9550	3.66×10^-5	550	0.2	1	+1.20	137
LK8-C14-Y	1.2	27000	2.0×10^-7	15	0.1	1	+0.60	7
LK8-C120-Y	3.0	19000	1.06×10^-6	31	0.13	1	+0.80	19
LK8-C25-Y	5.0	15200	3.15×10^-6	65	0.14	1	+0.90	32
LK8-C30-Y	7.5	12700	6.15×10^-6	73	0.15	1	+1.00	46
LK8-C40S-Y	12	9500	3.01×10^-5	570	0.1	1	+1.20	113
LK8-C40-Y	12	9500	3.66×10^-5	570	0.1	1	+1.20	137
LK8-C155-Y	35	6950	1.60×10^-4	1600	0.14	1	+1.40	344
LK8-C65-Y	95	5850	3.55×10^-4	3000	0.15	1	+1.50	505
LK8-C80-Y	190	4750	1.04×10^-3	5300	0.17	1	+1.80	1006
LK8-C95-Y	265	4000	2.27×10^-3	6200	0.19	1	+2.00	1531
LK8-C105-Y	310	3600	3.79×10^-3	10870	0.23	1	+2.10	2106
LK8-C14-R	2.0	27000	2.0×10-7	22	0.06	0.9	+0.60	7
LK8-C20-R	5.0	19000	1.06×10^-⁶	51	0.08	0.9	+0.80	19
LK8-C25-R	9.0	15200	3.15×10^-⁶	85	0.08	0.9	+0.90	32
LK8-C30-R	12.5	12700	6.15×10^-⁶	130	0.09	0.9	+1.00	46
LK8-C40S-R	21	9550	3.01×10^-⁵	1200	0.06	0.9	+1.20	113
LK8-C40-R	21	9550	3.66×10^-⁵	1200	0.06	0.9	+1.20	137
LK8-C55-R	60	6950	1.60×10^-⁴	2600	0.1	0.9	+1.40	344
LK8-C65-R	160	5850	3.55×10^-⁴	4900	0.1	0.9	+1.50	505
LK8-C80-R	325	4750	1.04×10^-³	6500	0.1	0.9	+1.80	1006
LK8-C95-R	450	4000	2.27×10^-³	8900	0.1	0.9	+2.00	1531
LK8-C105-R	525	3600	3.79×10^-³	25759	0.1	0.9	+2.10	2106
LK8-C120-R	685	3150	7.6×10^-³	32117	0.1	0.9	+2.20	3280
LK8-C135-R	940	2800	1.44×10^-²	38520	0.1	0.9	+2.60	4971
LK8-C55-G	75	8650	1.60×10^-⁴	5030	0.07	0.8	+1.40	344
LK8-C65-G	200	7350	3.55×10^-⁴	10260	0.08	0.8	+1.50	505
LK8-C80-G	405	5950	1.04×10^-³	16300	0.09	0.8	+1.80	1006
LK8-C95-G	560	5000	2.27×10^-³	26860	0.1	0.8	+2.00	1531
LK8-C105-G	655	4550	3.79×10^-³	47630	0.11	0.8	+2.10	2106

Note:

Moment ofinertia and mass figures based on the maximum shaft bores.

The maximum speed does not consider dynamic balance.

The elastic value is based on 20°C.

Other Curved Jaw Coupling

COUP-LINK, Guangzhou LINK Automation Equipment Co.,Ltd.

Add.: 2606-2609 Room, B Building, Feng Xing Square, No.242 Tian He Road, Guangzhou City, Guangdong Province, China
Tel.: 0086-20-3839 5380
Fax.: 0086-20-3839 5480

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